body {
  text-align: center;
  overflow: hidden;
  background: #F7FAFC;
  font-family: "Microsoft YaHei";
  position: relative;
}
#loginBox {
  width: 400px;
  padding-bottom: 40px;
  margin-left: -200px;
  border-radius: 20px;
  box-shadow: 2px 10px 20px 1px rgba(0, 170, 255, 0.2);
  position: absolute;
  top: 200px;
  left: 50%;
}
#loginBoxHeader {
  width: 400px;
  font-size: 30px;
  line-height: 100px;
  color: #777;
}
#loginBoxHeader img.logo {
  display: block;
  width: 72%;
  margin: 48px auto;
}
#loginBoxForm {
  height: 200px;
  padding: 20px 50px 20px;
}
ul {
  padding: 0;
}
li {
  list-style: none;
}
.iptbox {
  border-bottom: 1px solid #BBB;
  line-height: 40px;
}
.iptbox label {
  height: 100%;
  line-height: inherit;
  margin: 0;
}
.iptbox label i {
  vertical-align: middle;
}
.iptbox input {
  width: 270px;
  border: 0;
  outline: none;
  padding: 0;
  padding-left: 16px;
  color: #999;
}
.iptbox input::-webkit-input-placeholder {
  color: #999;
}
.userPwdBox {
  margin-top: 40px;
}
.fa-user,
.fa-lock {
  color: #BBB;
}
#loginBoxBtn {
  width: 400px;
  padding-left: 30px;
  padding-right: 30px;
}
#loginBoxBtn button {
  margin-left: auto;
  margin-right: auto;
  width: 280px;
  height: 50px;
  color: #FFF;
  background-color: #00AAFF;
  outline: none;
  box-shadow: 2px 10px 20px 1px rgba(0, 170, 255, 0.2);
  transition-duration: 0.5s;
}
#loginBoxBtn button:hover {
  width: 340px;
  background-color: #48D1D1;
}
#copy {
  width: 100%;
  text-align: center;
  color: #999;
  position: fixed;
  left: 0;
  bottom: 16px;
}
